Question

Which of the following statements(s) is/are incorrect? 

(i) Only 1/8^th portion of an atom located at corner of a cubic unit cell is its neigh bouring unit cell. 

(ii) Total number of atoms per unit cell for a face centered cubic unit cell is 3 . 

(iii) Atom located at the body center is shared between two adjacent unit cells. 

(a) (iii) only 

(b) (ii) only 

(c) (i) and (ii) 

(d) (ii) and (iii)

Answer 1

Correct option: (d) (ii) and (iii)

Explanation;

Total number of atoms per unit cell for a face centered cubic unit is 4.

The atom at the body center completely belongs to the unit cell in which it is present.